20565757264

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{347}}^1\times {\mathrm{3433}}^1$

素因数の和:3884

約数の個数: 80

約数和(自身を含む): 43566086592

約数和(自身を除く): 23000329328

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 83, 104, 166, 208, 332, 347, 664, 694, 1079, 1328, 1388, 2158, 2776, 3433, 4316, 4511, 5552, 6866, 8632, 9022, 13732, 17264, 18044, 27464, 28801, 36088, 44629, 54928, 57602, 72176, 89258, 115204, 178516, 230408, 284939, 357032, 374413, 460816, 569878, 714064, 748826, 1139756, 1191251, 1497652, 2279512, 2382502, 2995304, 3704207, 4559024, 4765004, 5990608, 7408414, 9530008, 14816828, 15486263, 19060016, 29633656, 30972526, 59267312, 61945052, 98873833, 123890104, 197747666, 247780208, 395495332, 790990664, 1285359829, 1581981328, 2570719658, 5141439316, 10282878632, 20565757264]

約数ペア:

[(1, 20565757264), (2, 10282878632), (4, 5141439316), (8, 2570719658), (13, 1581981328), (16, 1285359829), (26, 790990664), (52, 395495332), (83, 247780208), (104, 197747666), (166, 123890104), (208, 98873833), (332, 61945052), (347, 59267312), (664, 30972526), (694, 29633656), (1079, 19060016), (1328, 15486263), (1388, 14816828), (2158, 9530008), (2776, 7408414), (3433, 5990608), (4316, 4765004), (4511, 4559024), (5552, 3704207), (6866, 2995304), (8632, 2382502), (9022, 2279512), (13732, 1497652), (17264, 1191251), (18044, 1139756), (27464, 748826), (28801, 714064), (36088, 569878), (44629, 460816), (54928, 374413), (57602, 357032), (72176, 284939), (89258, 230408), (115204, 178516)]